23
Trouble Shooting Guide
No plenum display when unit turned ON
Cooling not available
Heating not available
Fault codes displayed on the panel
Poor cooling capacity
Before contacting Houghton for technical
support please collect the following information.
●
Are any error codes displayed ?
●
Is the display panel in normal operation or
not ? Does it display a temperature from 16
to 30
℃
?
●
Can you adjust the setting temperature when
in cool or heat mode?
●
Is there a
"
0
"
shown in the display?
●
Is the display showing a jumbled display?
●
When in fan mode is there any air flow from
the plenum outlets
?
●
Can you hear the compressor starting or
stopping in heating or cooling mode
?
Your help in collecting this information will
greatly assist the Houghton service team in
correcting any problems
-
Thank you.
●
Check whether the power is supplied to RV and
circuit breakers are on?
●
Check that the remote battery is OK?
●
Check whether the remote control is off ?
●
Check that the cooling mode is selected and the
plenum display shows
.
●
Use the remote control to set required temperature
below the current room temperature.
●
The compressor will delay a re-start for three
minutes
.
●
Check that the heating mode is selected and the
plenum display shows
.
●
Use the remote control to set required temperature
above the current room temperature.
●
More time would be needed for starting heating under
extremely cold condition
.
●
When the unit is in heating mode and the outside
temperature is very low the unit may automatically
enter defrost mode
.
The heating will temporarily stop
as the unit warms the outside coil to remove any frost
&
ice
.
Heating will resume once the outside coil has
been cleared
.
During defrost the unit will display
"
dF
"
.
●
To make sure the filter is clean
.
●
Turn on the fan to high FAN to obtain the maximum
capacity
.
●
To make sure all the doors and windows
,
as well as
the sunroof are closed
.
●
Curtains and awnings can be used to decrease the
heating load
.
●
In case there is
"
0
"
or a jumbled display while on
generator supply this may indicate unstable voltage
and current
.
Communication fault
E0
Room temperature sensor fault
E1
Indoor coil temperature sensor fault
E2
Outdoor coil temperature sensor fault
E3
No cooling effect
E4
Outdoor coil temperature too high
E5
" "
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